Re: UNIQUE constraint matching given keys for referenced

On Thu, 8 Aug 2002, Jeff Eckermann wrote:

> Thought I understood this, but evidently not...
> couldn't find anything in the docs or archives that
> helped me, either.
>
> Trying to add a new table, then referencing a number
> of other tables to a field in the new table. Table
> definition:
>
> create table "employee" (
> "emp_id" integer default
> nextval('employee_emp_id_key'::text) not null,
> "emp_num" text,
> ...
> constraint "employee_pkey" primary key
> ("emp_id"),
> constraint "emp_num_key" unique (emp_num)
> );
>
> personnel_benefits=# \i employees.dump
> You are now connected as new user jeck.
> psql:employees.dump:31: NOTICE: CREATE TABLE/PRIMARY
> KEY will create implicit index 'employee_pkey' for
> table 'employee'
> psql:employees.dump:31: NOTICE: CREATE TABLE/UNIQUE
> will create implicit index 'emp_num_key' for table
> 'employee'
> CREATE
> personnel_benefits=# alter table emp_insurance add
> constraint ei_emp_fk foreign key (emp_no) references
> employee (emp_no);
/\
||
You've got a typo in your alter table line. Should be emp_num from the table
definition you've given above.

> NOTICE: ALTER TABLE ... ADD CONSTRAINT will create
> implicit trigger(s) for FOREIGN KEY check(s)
> ERROR: UNIQUE constraint matching given keys for
> referenced table "employee" not found
> personnel_benefits=#

Then hopefully this error message will magically disappear.

--
Nigel J. Andrews
Director

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